# Add 3 master nodes to our cluster configured only default(master/data...) node **URL:** \ **Category:** Elasticsearch\ **Created:** [March 10, 2021, 5:39am UTC](https://discuss.elastic.co/t/add-3-master-nodes-to-our-cluster-configured-only-default-master-data-node/266764 "2021-03-10T05:39:59Z")\ **Posts on this page:** 2\ **Page:** 1
**Author:** ![mgjung02](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/mgjung02/32/82423_2.png) [@mgjung02](https://discuss.elastic.co/u/mgjung02)\ **Post date:** [March 10, 2021, 5:39am UTC](https://discuss.elastic.co/t/add-3-master-nodes-to-our-cluster-configured-only-default-master-data-node/266764/1 "2021-03-10T05:39:59Z")
Now, we run 6 nodes and all of them has default role (master/data...). For more efficient cluster environment, we want to change our cluster like below. - Add 2 master-dedicated node. (new node) - Change one existed node's role to 'master&voting only&data'. - Change 5 existed node's role to 'data only'. So, 1. Please let me know, if there is any problem with our plan. (run 2 dedicated master node & 1 voting only node) 2. If our plan has no problem, please share me recommended process and how to do this without any downtime. for reference, we use elasticsearch v7.2 Thanks. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [April 7, 2021, 5:40am UTC](https://discuss.elastic.co/t/add-3-master-nodes-to-our-cluster-configured-only-default-master-data-node/266764/2 "2021-04-07T05:40:05Z")
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